Machine for hiving staves from the block



UNITED femme aTEN'r rio `L. LYMAN, J.`P. HODGKINS, AND vERAVVSON, OF GARTHAGE, NEW YORK.

`MACIE-IINE FOR `ZR'IVING STAVES FROM THE 1BLQCK.

Specificaton of Letters `PatentlSl'o. 22,882,v dated February 8, 1859*.

To (LZZ who'm tfmay concem:

Be it known that we, LUCIUs LYMAN, JAMEs P. looeifiins, andEDMUND RAwsoN, all of Carthage, in the county of J efferson and State of New York, haveinvented a new and useful Improvement inGages for Stave, Lath, and Analogous Machines in which a reciprocating-knife is used for cutting the work or stuff1 from the bolt; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the anneXed a drawings, making a part of this specification, in which'- Figure 1, is a transverse Vertical section of our invention taken in the line m, 00, Fig. 2. Fig. 2, is a front view of the same.

Similar letters of reference indicate corresponding parts in the two figures.

The object of this invention is to obtain gages that Will rise and fall simultaneously with the knife in order to perform their proper function without interfering with the operation of the knife and at the same time admit of being` set with facility for thepurpose of cuttlng stuff of Various thicknesses, and also to obtain gages that cannot be injured by the casual falling of the bolt upon them.

To enable those skilled in the art to fully understand and construct our invention we will proceed to describe it.

A represents a framing which may be constructecl in any proper manner to support the working parts of the machine.

B, represents a segment bar which eX- tends transversely across the upper part of the framing and is attached to radius bars C, C, the lower ends of the bars being pivoted to the framing A, one at each side as shown clearly at a, a. To the lower end of the bar B, a knife D, is attached, the form of which corresponds to a porton of a hollow cylinder, the pivots a, being at the cen` ter.

E, E', are two traverse bars at the upper part of the framing A, and to these travel-se bars bed plates or strips b, Z), are attached, one plate being shown in Fig. 1.

F, is the driving shaft of the machine. This shaft is placed transversely in the framing A, and has a crank wheel G, at each end, each crank wheel having a pitman H, attached to it, said pitman being connected with the ends of the segmentbar B, as shown at 0.

On the shaft F, at about its center a workingpulley (Z, and pulley 0, are placed, and two eccentrics f, `f, are also placed on said shaft, onebetween each crank wheel G, and the pulleys Z, 0, as shown clearly in Fig. 2. Each eccentric f, f, has a rod g, attached to it by a strap h. The upper ends of these rods g, are connected by joint-s to tubes j, j, which are each fitted in adjustable blocks lc, lc. The blocks 7a, 70, are fitted in the front traverse bar E', of the framing and are adjusted farther in or out by set screws Z, m, two screws Z, Z, passing through each block into the traverse bar E', the screws m., serving as bearings and passing through the bar E', at its back side, each block 70, bearing against four screws m. The tubes j, j, are allowed to slide freely up and down within the blocks lc, 71;, and within each tube j, a rod 0, is placed, said rods rest ing on spiral Springs z), which are placed in the bottoms of the tubes j, as shown clearly in F ig. 1, said Springs having a tendency to keep the rods 0, elevated.

The position of the eccentrics f, f, and crank wheels G, G, correspond with each other on the shaft F, so that when said shaft is rotated, the knife D, tubes j, and rods 0-, will rise and fall simultaneously.

The bolt from which the work is cut, shown in red Fig. 1, is placed on the bed ,plates or strips Z), and power is applied to the shaft F, in any proper way.` The bolt is shoved forward by hand or by any inechanical device as the rods 0, 0, and knife D, rise and the front of the bolt bears against the rods 0, 0. As the knife D, descends it cuts a strip from the bolt, the thickness of the strip being equal to the space between the back sides of the rods 0, 0, and the knife D, and the rods 0, 0, descend with the knife so that when the latter reaches its bed which is the upper surface of the traverse bar E', the upper edges of the rods 0, 0, will be fiush with the upper surface of the bar E', and the cut strip be allowed to fall from the bar E', without any obstruction. The thickness of the strips or stufl cut from the bolt may be regulated by adjusting the screws Z, mi, and thereby moving the blocks 70, farther in or out. In case the front end of the bolt rises a certain distance with the knife D, and falls on the rods 0, a contingency of frequent occurrence, the rods 0, o, will yield or give to the force of the block, and will not be injured thereby. This is an essential feature of the invention, for gages arranged in the ordinary Way are frequently broken or bent and rendered inoperative by the fa11- ing` of the bolt.

The machine herein described is designed for Cutting staves, but it will be seen of course that the gages may be used with a knife having a. rectilinear reciprocating mo` tion for Cutting laths, and other Work.

We do not claim broadly the employinent or use of inovable or Vibrating' gages, for such device has been previously used; but,

Having thus desoribed our invention,

what we do claim as new and desire to secure by Letters Patent, is,

1. Having the tubes j, j, of the rods or 20 j, in the lower end of which Springs p are 25 placed and on which Springs the rods 0, 0, rest for the purpose set forth.

LUCIUS LYMAN. JAMES P. HODGKINS. EDMUND RAVVSON.

VVitnesses:

M. BIOKFORD, G. F. BRIDGMAN. 

